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Thread: 15w40 castrol semi syn

  
  1. #1
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    leimancell's Avatar
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    15w40 castrol semi syn

    15w40 castrol semi syn ok for a z20let ??

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    dont see why not, although 15w40 tends to be for higher milage vehicles, from what I have read.
    Astra MK4 SRi-Turbo with Courtenay Sport Tuned Z20LEH VXR 888 Sport Maxx Engine

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    5w-30 is the correct for z20let
    AOC and here in Greece!!!!

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    but not really recommended.

    10w40
    Astra MK4 SRi-Turbo with Courtenay Sport Tuned Z20LEH VXR 888 Sport Maxx Engine

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    a 15w-40 will be better suited to summer use as its fairly thick when cold so id refrain from using it it cold weather! its not the best oil out there but will be fine if you change it every 4-5k.
    At the end of the day, it gets dark!!!!!

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